Vulnerabilities > CVE-2016-8214 - Permission Issues vulnerability in EMC Avamar Data Store and Avamar Virtual Edition
Attack vector
LOCAL Attack complexity
LOW Privileges required
NONE Confidentiality impact
PARTIAL Integrity impact
PARTIAL Availability impact
PARTIAL Summary
EMC Avamar Data Store (ADS) and Avamar Virtual Edition (AVE) versions 7.3.0 and 7.3.1 contain a vulnerability that may allow malicious administrators to compromise Avamar servers.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 4 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Accessing, Modifying or Executing Executable Files An attack of this type exploits a system's configuration that allows an attacker to either directly access an executable file, for example through shell access; or in a possible worst case allows an attacker to upload a file and then execute it. Web servers, ftp servers, and message oriented middleware systems which have many integration points are particularly vulnerable, because both the programmers and the administrators must be in synch regarding the interfaces and the correct privileges for each interface.
- Leverage Executable Code in Non-Executable Files An attack of this type exploits a system's trust in configuration and resource files, when the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high. The attack can be directed at a client system, such as causing buffer overrun through loading seemingly benign image files, as in Microsoft Security Bulletin MS04-028 where specially crafted JPEG files could cause a buffer overrun once loaded into the browser. Another example targets clients reading pdf files. In this case the attacker simply appends javascript to the end of a legitimate url for a pdf (http://www.gnucitizen.org/blog/danger-danger-danger/) http://path/to/pdf/file.pdf#whatever_name_you_want=javascript:your_code_here The client assumes that they are reading a pdf, but the attacker has modified the resource and loaded executable javascript into the client's browser process. The attack can also target server processes. The attacker edits the resource or configuration file, for example a web.xml file used to configure security permissions for a J2EE app server, adding role name "public" grants all users with the public role the ability to use the administration functionality. The server trusts its configuration file to be correct, but when they are manipulated, the attacker gains full control.
Nessus
| NASL family | Misc. |
| NASL id | EMC_AVAMAR_ESA-2016-146.NASL |
| description | According to its self-reported version number, the EMC Avamar Data Store (ADS) or Avamar Virtual Edition (AVE) software running on the remote host is a version prior to 7.3.0 Hotfix 268253 (7.3.0.233) or prior to 7.3.1 Hotfix 272363 (7.3.1.125). It is, therefore, affected by a local privilege escalation vulnerability due to incorrect file ownership. A local attacker who has administrative access can exploit this vulnerability to bypass some sudo command restrictions and execute arbitrary commands as root, resulting in gaining elevated privileges. |
| last seen | 2020-06-01 |
| modified | 2020-06-02 |
| plugin id | 96956 |
| published | 2017-02-02 |
| reporter | This script is Copyright (C) 2017-2019 and is owned by Tenable, Inc. or an Affiliate thereof. |
| source | https://www.tenable.com/plugins/nessus/96956 |
| title | EMC Avamar ADS / AVE 7.3.0.x < 7.3.0 Hotfix 268253 / 7.3.1.x < 7.3.1 Hotfix 272363 Incorrect File Ownership Local Privilege Escalation (ESA-2016-146) |
| code | |